20120387 is an odd 8-digits composite number following 20120386
and preceding 20120388 . In scientific notation, it is written as 2.0120387 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 17084232 positive integers (up to 20120387) that are relatively prime to 20120387.
20120387 has 8 divisors, whose sum is 23210496
The reverse of 20120387 is 78302102
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty thousand three hundred eighty-seven
Scientific notation
2.0120387 × 10^7
Engineering notation
2.0120387 × 10^6
Prime Factorization
7 × 107 × 26863
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20120387
Product of the distinct prime numbers
The prime factorization of 20120387 is 7 × 107 × 26863.
Since it has a total of 3 prime factors.
6 , 8 , 87 , 96 , 698 , 952 , 7993 , 1382 , 3879 , 83041 , 265102 , 726521 , 4954423 , 802331 , 54767108 , 129579 , 150608271 , 63485910 , 4128916470 , 2510387936
n×2
40240774
n×3
60361161
n×4
80481548
n×5
100601935
n÷2
10060193.5
n÷3
6706795.6666667
n÷3
5030096.75
n÷5
4024077.4
n2
404829973029769
n3
8.1453357265585E+21
n4
1.6388730706328E+29
n5
3.2974760425011E+36
2 √n
4485.5754368866
3 √n
271.98530684039
4 √n
66.974438682878
5 √n
28.888651245283
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20120386
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20120387 can be divided by 8 positive divisors.
The sum of these divisors (counting 20120387) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000001101000011
3
Ternary
1101212012222112
4
Quaternary
1030300031003
5
Quinary
20122323022
6
Senary
1555125535
8
Octal
114601503
10
Decimal
20120387
12
Duodecimal
68a38ab
16
Hexadecimal
1330343
20
Vigesimal
65f0j7
36
Base36
bz8zn
md5
1e950af992ddf94a9d51d1ecde84e294
sha1
567baafca4059381b3fff672d4fc0c3f7231b918
sha256
1a19b92aeba3c6bfa5ca6a93d5c3f84bb7697f0c2ceb7677ba892fc8414a434a
sha512
239d7805aa55e242b67b9d20589e9e731ec6e138b02bbf8899590ab35b2e7cfc13ab40147cc62b7f7c4157ad55a8388587ed856802cb27f448254429806263fb
ripemd-160
f4f9af57530011c2cd31e3d019b5725fd4d77981
Diameter
40240774
Circumference
126420119.97317
Area
1.2718108692233E+15
Volume
3.4119102506105E+22
Surface area
5.0872434768931E+15
Circumference
126420119.97317
Perimeter
80481548
Area
404829973029769
Diagonal
28454524.175595
Surface area
2428979838178614
Volume
8.1453357265585E+21
Space diagonal
34849532.551948
Perimeter
60361161
Area
1.7529652042857E+14
Altitude
17424766.275974
Surface area
1.7529652042857E+14
Volume
9.599370212151E+20
Height
9484841.3918651